Hi Gayla,
Thank you for using the Support Forum. Please take a look at this solution for installing the scan and consider reinstalling. If this does not help lease consider contacting your support centre for further assistance.
I've checked the compatibility on http://download.support.xerox.com/pub/drivers/Compatibility_Matrix/other/macosx/en/MacOSX10-7_Matrix... but it says it's fully compatible (1).
Any ideas on how I can get my legal scanning capabilities back?
Thx, Gayla
P.S. Apple says "ask Xerox"